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4篇 您的检索式:作者名="Giulia Merli"
    题名 作者 年代 出处 被引量
1Usefulness of Serum Pepsinogens in Helicobacter pylori Chronic Gastritis: Relationship With Inflammation, Activity, and Density of the Bacterium显示文摘Francesco Mario Lucas Giovanni Cavallaro Ali Mahamat Moussa Pietro Caruana Roberta Merli Andrea Maini Simone Bertolini Nadia Massimo Rugge Giulia Martina Cavestro Giovanni Aragona Mario Plebani Angelo Franzé Giorgio Nervi 2006Digestive Diseases and Sciences2006,,10:1
2Usefulness of Serum Pepsinogens in Helicobacter pylori Chronic Gastritis: Relationship With Inflammation, Activity, and Density of the Bacterium显示文摘Francesco Mario Lucas Giovanni Cavallaro Ali Mahamat Moussa Pietro Caruana Roberta Merli Andrea Maini Simone Bertolini Nadia Massimo Rugge Giulia Martina Cavestro Giovanni Aragona Mario Plebani Angelo Franzé Giorgio Nervi 2006Digestive Diseases and Sciences2006,,10:1
3Effects of chronic therapy with non-steroideal antinflammatory drugs on gastric permeability of sucrose: A study on 71 patients with rheumatoid arthritis显示文摘AIM: To evaluate the gastric permeability after both acute and chronic use of non-steroidal anti-inflammatory drugs (NSAIDs) and to assess the clinical usefulness of sucrose test in detecting and following NSAIDs- induced gastric damage mainly in asymptomatic patients and the efficacy of a single pantoprazole dose in chronic users. METHODS: Seventy-one consecutive patients on chronic therapy with NSAIDs were enrolled in the study and divided into groups A and B (group A receiving 40 mg pantoprazole daily, group B only receiving NSAIDs). Sucrose test was performed at baseline and after 2, 4 and 12 wk, respectively. The symptoms in the upper gastrointestinal tract were recorded. RESULTS: The patients treated with pantoprazole had sucrose excretion under the limit during the entire follow-up period. The patients without gastroprotection had sucrose excretion above the limit after 2 wk, with an increasing trend in the following weeks (P = 0.000). A number of patients in this group revealed a significantly altered gastric permeability although they were asymptomatic during the follow-up period. CONCLUSION: Sucrose test can be proposed as a valid tool for the clinical evaluation of NSAIDs- induced gastric damage in both acute and chronic therapy. This tecnique helps to identify patients with clinically silent gastric damages. Pantoprazole (40 mg daily) is effective and well tolerated in chronic NSAID users.Marta Maino Nicola Mantovani Roberta Merli Giulia Martina Cavestro Gioacchino Leandro Lucas Giovanni Cavallaro Vincenzo Corrente Veronica Iori Alberto Pilotto Angelo Franzè Francesco Di Mario 2006World Journal of Gastroenterology2006,12,31:0
4Non-toxic, high selectivity process for the extraction of precious metals from waste printed circuit boards显示文摘The work presented here focused on the extraction of gold (Au), silver (Ag) and palladium (Pd) from electronic waste using a solution of ammonium thiosulfate. Thiosulfate was used as a valid alternative to cyanide for precious metal extractions, due to its non-toxicity and high selectivity. The interactions between sodium thiosulfate, total ammonia/ammonium, precious metal concentrations and the particle size of the waste printed circuit boards (WPCBs) were studied by the response surface methodology (RSM) and the principal component analysis (PCA) to maximize precious metal mobilization. Au extraction reached a high efficiency with a granulometry of less than 0.25 mm, but the consumption of reagents was high. On the other hand, Ag extraction depended neither on thiosulfate/ammonia concentration nor granulometry of WPCBs and it showed efficiency of 90% also with the biggest particle size (0.50 < Ø < 1.00 mm). Pd extraction, similarly to Au, showed the best efficiency with the smallest and the medium WPCB sizes, but required less reagents compared to Au. The results showed that precious metal leaching is a complex process (mainly for Au, which requires more severe conditions in order to achieve high extraction efficiencies) correlated with reagent concentrations, precious metal concentrations and WPCB particle sizes. These results have great potentiality, suggesting the possibility of a more selective recovery of precious metals based on the different granulometry of the WPCBs. Furthermore, the high extraction efficiencies obtained for all the metals bode well in the perspective of large-scale applications.Giulia Merli Alessandro Becci Alessia Amato Francesca Beolchini 2023Frontiers of Environmental Science & Engineering2023,17,10:0
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